The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Jan. 05, 2016
Filed:
Sep. 03, 2008
Charles Leung, North York, CA;
Jatin Naik, Brampton, CA;
Lawrence Lim, Calgary, CA;
Laurent Dahan, Helsinki, FI;
Milivoje Aleksic, Richmond Hill, CA;
Charles Leung, North York, CA;
Jatin Naik, Brampton, CA;
Lawrence Lim, Calgary, CA;
Laurent Dahan, Helsinki, FI;
Milivoje Aleksic, Richmond Hill, CA;
ATI TECHNOLOGIES ULC, Markham, CA;
Abstract
A transform function represented by at least n points that define n−1 regions is determined based at least in part on a first set of values associated with a display frame and a maximum average contrast function. The n points can be determined in response to a change in an average contrast of the display frame compared to an average contrast of a previous display frame exceeding a predetermined threshold. The first set of values is converted to a corresponding second set of values based on the transform function. A backlight control signal is generated based on an average contrast of the second set of values, whereby the backlight control signal is configured to control an intensity of a backlight of a display. Further, a video signal is generated based on the second set of values, whereby the video signal configured to drive the display.